在树枝中添加新的全局变量

时间:2016-12-26 17:02:12

标签: twig userfrosting

我正在尝试获取登录页面中添加的新字段的数据。我做了什么:

  1. 修改AccountController.php登录功能,添加新参数:$this->_app->login($user, $client, !empty($data['rememberme']))
  2. Userfrosting.php登录功能中,我已将其设置为应用程序:$this->client = $client;
  3. setupTwigUserVariables功能添加了twig global:$twig->addGlobal("client", $this->client);
  4. 问题是在模板中,{{client.id}}什么都不返回。任何帮助将不胜感激。

1 个答案:

答案 0 :(得分:0)

在UserFrosting 4中,您应该在Sprinkle的src/Twig/目录中创建一个Twig扩展,并将该变量添加到getGlobals的返回值。

您的情况有点棘手,因为我不确定client如何成为全局变量,但同时依赖于$data['client_id'] - 这似乎是一个请求参数。目前,我假设您在任何需要client变量的请求中提交此参数。

<?php
/**
 * Stack Overflow
 *
 * @link      https://stackoverflow.com
 */
namespace UserFrosting\Sprinkle\Site\Twig;

use Interop\Container\ContainerInterface;
use UserFrosting\Sprinkle\Site\Database\Models\Client;

/**
 * Extends Twig functionality for the Site sprinkle.
 *
 * @author Jose Luis
 */
class Extension extends \Twig_Extension
{

    protected $services;
    protected $config;

    public function __construct(ContainerInterface $services)
    {
        $this->services = $services;
        $this->config = $services->config;
    }

    public function getName()
    {
        return 'myproject';
    }

    public function getGlobals()
    {
        try {
            $currentUser = $this->services->currentUser;

            // Assumes the client_id is being submitted as a query string (url) parameter
            $clientId = $this->services->request->getQueryParam('client_id');

            $client = Client::where('client_id', clientId)->where('userid', $currentUser->id)->first();
        } catch (\Exception $e) {
            $client = null;
        }

        return [
            'client' => $client
        ];
    }
}

然后,您需要在Sprinkle的service provider class

中注册此扩展程序
<?php
/**
 * Stack Overflow
 *
 * @link      https://stackoverflow.com
 */
namespace UserFrosting\Sprinkle\Site\ServicesProvider;

use UserFrosting\Sprinkle\Site\Twig\Extension as JoseExtension;

/**
 * Services provider for the Site sprinkle.
 *
 * @author Jose Luis
 */
class ServicesProvider
{
    /**
     * Register extended user fields services.
     *
     * @param Container $container A DI container implementing ArrayAccess and container-interop.
     */
    public function register($container)
    {
        /**
         * Extends the 'view' service with Jose's Twig Extension.
         */
        $container->extend('view', function ($view, $c) {
            $twig = $view->getEnvironment();
            $extension = new JoseExtension($c);
            $twig->addExtension($extension);

            return $view;
        });
    }
}

是的,我知道这里有很多样板文件。但是,一旦你第一次设置它们,很容易在Twig环境中添加新的变量/函数/过滤器,以及将来为Sprinkle添加新服务。